1950's O.E.M. diesel horns

Ralph M posted:

This question is aimed at EMD GP9's built in the 1950's and the horns that were used but the answer may apply to a broader subject.

1) Did manufacturers (EMD) offer these locos with a "standard horn" that  some RRs  swapped out for whatever they preferred ?

Yes. As I recall the basic or "standard" horn, back in that era was the Leslie A-200 large "blat" or "bull horn".

or

2) Did the RRs order them built with their horn of preference?

Yes.

or

3) If the loco was resold several times in its life did each new RR re-equip them as they saw fit?

Yes.

Thanks

-RM

And . . . many railroads which took delivery of F7's and GP7's with the standard A-200 blaster air horn, later replaced the horns with multiple bell horns, and some also relocated the horns, using their own shop forces.

(A bell is the part of a horn that is narrow at its entrance and flares to wide at its end.  A Nathan M5 has 5 bells, not 5 horns.  The Nathan M5 as a whole is one horn with 5 bells.)

@Number90: Thanks!

From my MTH RK GP9: Wondering what horn(s) these are supposed to represent?

Leslie RS2? 

Ralph M posted:

@Number90: Thanks!

From my MTH RK GP9: Wondering what horn(s) these are supposed to represent?

Leslie RS2? 

 

To me, it looks like one Leslie A-200 (the big one), with a much smaller version mounted right next to it. Hard to tell what the manufacturer was trying to duplicate, but then it IS a Rail King.

I'm guessing maybe this set up?

Hot Water posted:

Ralph M posted:

@Number90: Thanks!

From my MTH RK GP9: Wondering what horn(s) these are supposed to represent?

Leslie RS2? 

 

To me, it looks like one Leslie A-200 (the big one), with a much smaller version mounted right next to it. Hard to tell what the manufacturer was trying to duplicate, but then it IS a Rail King.

Early on, Leslie offered 2-chime versions, in addition to 3, 4 and 5-chime versions, of it's Typhon horn.  I believe that is what is depicted on your model and on the Milwaukee unit in the photograph.

BobbyD posted:

I'm guessing maybe this set up?

I just noticed the third horn, facing backwards just in front of the dynamic brake blister, That looks like an A-200 while the twin horn on the short hood roof may be one of Leslie's early 2-chimes.

""I just noticed the third horn, facing backwards just in front of the dynamic brake blister, That looks like an A-200 while the twin horn on the short hood roof may be one of Leslie's early 2-chimes.""

Yes, the Rail-King model has the same detail. Score one for Rail-King.